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" Being able to have a laboratory on Mars, being able to have some sort of sustained human presence on Mars in the future, I think, is critically important for science. "
Ellen Stofan
Future
Think
Science
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" There's a huge question of whether you really need water for life. "
Ellen Stofan
Water
You
Really
" Every time I give a talk, I ask the audience - especially if it's kids - how many want to go to Mars. At least half raise their hands. I don't think there's going to be any shortage of volunteers. "
Ellen Stofan
Time
Talk
Think
" I'm actually a NASA brat. My father was a rocket scientist. He started working at NASA before it was NASA in 1959. "
Ellen Stofan
Rocket
Started
Working
" We actually look to the scientific community to kind of come back to NASA and tell us what the priorities should be. And then at NASA, we try to look within our budget and say, 'What can we accommodate, and what are the most important things for the nation?' "
Ellen Stofan
Priorities
Look
Important
" When you look at Venus and the Earth, they formed at about the same place in the solar system. They're made of about the same materials; they're about the same size. "
Ellen Stofan
Solar
Earth
Look
" Prior to Magellan, due to the fact that we knew it was so hot on Venus, we thought that the rocks at the surface would behave more plastically, more like Silly Putty than like solid rock in the way that we think of it, like the rocks that I'm sitting on. "
Ellen Stofan
Rock
Hot
Rocks
" I always like to say just think you were a doctor with only one patient. You might understand how that person gets sick, how they get better, but you understand nothing about the progression of disease or how humans in general get ill. Now take an Earth scientist: you only have one planet to study. "
Ellen Stofan
Think
Earth
Doctor
" To unambiguously settle the questions of whether there was life on Mars, it will take scientists down on the surface. "
Ellen Stofan
Mars
Settle
Questions
" If I had an unlimited budget, I would really be probing that question of life because we know what the questions are, and we know what the destinations are. "
Ellen Stofan
Question
Life
Know
" It's part of the human character to want to know what's over the next hill, to want to know what's beyond. "
Ellen Stofan
Want
Hill
Human
" Everybody has busy lives, but you can tell people, 'Go outside and look at the night sky. We've been able to demonstrate that every star you see probably has a planet around it.' "
Ellen Stofan
People
Look
You
" Instead of being able to look at smaller interesting research projects, I am trying to see the links between all the research NASA does. For me, that's extremely fun because I get to go play and learn about areas of science that I know nothing about. "
Ellen Stofan
Know
I Am
Fun
" I wish someone would redo 'Dune.' "
Ellen Stofan
Would
Dune
Someone
" We're not going to get humans to Mars until at least the mid-2030s, and the world is going to change by then. "
Ellen Stofan
Change
World
Then
" People see space as a place where you go and cooperate. "
Ellen Stofan
Space
People
Go
" As chief scientist, it's sort of my job to look at bridges between what we do and to see the connections. But when we try to understand how are planets around other stars habitable... to looking back at the Earth - how are the changes that are taking place, how are they going to affect humanity? "
Ellen Stofan
Place
Stars
Looking Back
" You see countries like India really investing in their space program because they see it as inspirational and good for their economy. "
Ellen Stofan
Space
Inspirational
India
" Water-based life is very much an Earth-centric view, and we can push the envelope on that here in our own solar system. We have the methane seas of Titan. "
Ellen Stofan
Own
Life
Solar
" I grew up in this business... A lot of my life has been centered around this question about how NASA is helping us to understand our own home planet... and to understand our place in the universe. "
Ellen Stofan
Place
My Life
Life
" When we go to explore, we do it as a globe. "
Ellen Stofan
Explore
Globe
Go
" One of the big things about space exploration is that it is as expensive as it is complicated, and you need all the countries of the world to help if you want to accomplish big goals. "
Ellen Stofan
You
World
Space
" If you think of the Apollo capsule coming into Earth with a parachute, the Mars atmosphere is just so thin, you've got to find some way of slowing yourself down really rapidly. "
Ellen Stofan
Down
Yourself
You
" So many people I talk to who work in technology, you ask them, 'What got you interested in science?' and those from my generation say, 'The Apollo landings.' "
Ellen Stofan
Science
You
Work
" With the mission to Mars, the whole world wants to get involved. So we actually have 13 different space agencies from around the world working on the global exploration road map. "
Ellen Stofan
Mission
Exploration
Road
" I live an hour from NASA's HQ in Washington, D.C., and sitting in a jam stresses me out. "
Ellen Stofan
Me
Washington
Sitting
" What we expect to find, certainly in our own solar system, are probably simple single or multiple-cell forms of life. To get to intelligent life takes stability of conditions over huge, long periods of time. "
Ellen Stofan
Simple
Time
Long
" My key aim is to get man on the surface of Mars by the mid-2030s. "
Ellen Stofan
Key
Get
Surface
" The public has an incredible capacity for appreciating the wonder of our planet, our solar system, our universe. "
Ellen Stofan
Universe
Wonder
Planet
" Mars missions will require up to three years in reduced gravity, so we need to make sure astronauts can not only survive but thrive as they move outward to explore this new world. "
Ellen Stofan
World
Need
Mars
" To avoid congestion, I get up at 5:10, grab a slice of raisin toast, and leave the house at 6 A.M. My husband, Tim Dunn, who works for an environmental agency, is still asleep when I slip out, and I find that rather annoying. "
Ellen Stofan
House
Husband
Up